Configure multi-stage container build incl template

django/Dockerfile

@@ -5,7 +5,7 @@ COPY docs src
 RUN mdbook build
 
 
-FROM python:3.11.3-bullseye
+FROM python:3.11.3-bullseye AS template
 ENV PYTHONUNBUFFERED=1
 ENV PYTHONDONTWRITEBYTECODE=1
 WORKDIR /code
@@ -16,10 +16,6 @@ RUN apt-get update && \
       libproj-dev \
       gdal-bin \
       libsqlite3-mod-spatialite \
-      # Database client for using './manage.py dbshell' etc
-      #sqlite3 \
-      #spatialite-bin \
-      #postgresql-client \
     && \
     apt-get -y autoremove && \
     apt-get -y clean && \
@@ -31,10 +27,32 @@ VOLUME /static
 VOLUME /media
 VOLUME /docs
 COPY . .
-COPY --from=docs /book/book /built_docs
 
 EXPOSE 8000
 
 HEALTHCHECK --interval=10s --timeout=5s --retries=5 CMD bash -c '[[ "$(curl -L -o /dev/null -s -w "%{http_code}\n" http://localhost:8000/)" == "200" ]]'
 
 ENTRYPOINT ["/code/docker-entrypoint.sh"]
+
+
+FROM template AS dev_template
+RUN apt-get update && \
+    apt-get install -y \
+      # Database client for using './manage.py dbshell' etc
+      sqlite3 \
+      spatialite-bin \
+      postgresql-client \
+    && \
+    apt-get -y autoremove && \
+    apt-get -y clean && \
+    rm -rf /var/lib/apt/lists/*
+
+
+FROM dev_template AS dev
+COPY . .
+COPY --from=docs /book/book /built_docs
+
+
+FROM template AS prod
+COPY . .
+COPY --from=docs /book/book /built_docs